import axios from 'axios'
import { MessageBox } from 'element-ui'
import store from '@/store'
import {getToken} from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import Vue from 'vue'
import { getCurrentTime } from "@/utils";

const _bus = new Vue()  // 创建一个事件总线
let num = 0
axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'

// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  // baseURL: process.env.VUE_APP_BASE_API,
  timeout: 10000
})

service.$bus = _bus;

// request拦截器
service.interceptors.request.use(config => {
  if (config.method === 'post' && config.headers.cmd === 'create') {
    config.data = Object.assign(config.data, {
      createPerson: store.getters.user.userName,
      createTime: getCurrentTime()
    })
  } else if (config.method === 'put' && config.headers.cmd === 'put') {
    config.data = Object.assign(config.data, {
      updatePerson: store.getters.user.userName,
      updateTime: getCurrentTime()
    })
    console.log("request拦截器, 请求数据：", config.data)
  }
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  _bus.$emit('showloading')
  return config
}, error => {
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
    _bus.$emit("closeLoading");
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = errorCode[code] || res.data.msg || errorCode['default']
    if (code === 401) {
      MessageBox.confirm('登录状态已过期，请重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).then(() => {
        store.dispatch('LogOut').then(() => {
          console.log(process.env.VUE_APP_NAME)
          location.href = `/${process.env.VUE_APP_NAME}`;
        })
      })
    } else if (code === 500) {
      return Promise.reject(res.data)
    } else if (code !== 200) {
      return Promise.reject('error')
    } else {
      return res.data
    }
  },
  error => {
    _bus.$emit("closeLoading");
    let {message} = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    console.log(error)
    return Promise.reject(error)
  }
)

export default service
